Bar

A solid, more or less rigid object of metal or wood with a uniform cross-section smaller than its length.

"The window was protected by steel bars."

A solid metal object with uniform (round, square, hexagonal, octagonal or rectangular) cross-section; in the US its smallest dimension is 1/4 inch or greater, a piece of thinner material being called a strip.

"Ancient Sparta used iron bars instead of handy coins in more valuable alloy, to physically discourage the use of money."

A cuboid piece of any solid commodity.

"bar of chocolate"

A broad shaft, or band, or stripe.

"a bar of colour"

To obstruct the passage of (someone or something).

"Our way was barred by a huge rockfall."

To prohibit.

"I couldn't get into the nightclub because I had been barred."

To lock or bolt with a bar.

"bar the door"

To imprint or paint with bars, to stripe.

Except, other than, besides.

"He invited everyone to his wedding bar his ex-wife."

Denotes the minimum odds offered on other horses not mentioned by name.

"Leg At Each Corner is at 3/1, Lost My Shirt 5/1, and it's 10/1 bar."

A non-SI unit of pressure equal to 100,000 pascals, approximately equal to atmospheric pressure at sea level.